Implementation of Android Drawer

Implementation of Android Drawer

A drawer control required in Android. The following is a simple implementation process.

First, write a layout. The layout should be noted as follows:

1. It must be the drawerLayou layout.

Android. support. v4.widget. DrawerLayout 2. There can only be two large layout s in drawerLayout 3. You must define whether the closed drawer is left or right.

 

 

     
 
          
   
    
Android: layout_gravity = right android: background = # ffffff>
   
  
 

 

The specific code implementation is as follows:

 

Public class MainActivity extends Activity implements OnClickListener {private Button button_Open, button_Close; private RelativeLayout relative_Close; private DrawerLayout drawerLayout; protected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_main); initUI ();} private void initUI () {button_Open = (Button) findViewById (R. id. button_open); button_Open.setOnClickListener (this); button_Close = (Button) findViewById (R. id. button_close); button_Close.setOnClickListener (this); relative_Close = (RelativeLayout) findViewById (R. id. relative_close); // set the size of the closed drawer LayoutParams layoutParams = relative_Close.getLayoutParams (); Display play = getWindowManager (). getdefadisplay display (); layoutParams. width = play. getWidth () * 4/5; relative_Close.setLayoutParams (layoutParams); drawerLayout = (DrawerLayout) findViewById (R. id. drawer) ;}@ Overridepublic void onClick (View v) {switch (v. getId () {case R. id. button_open: // open the drawer drawerLayout. openDrawer (relative_Close); break; case R. id. button_close: // close the drawer drawerLayout. closeDrawer (relative_Close); break ;}}}